994559731212 has 48 divisors (see below), whose sum is σ = 2450711934720. Its totient is φ = 313285439808.

The previous prime is 994559731169. The next prime is 994559731219. The reversal of 994559731212 is 212137955499.

It is not an unprimeable number, because it can be changed into a prime (994559731219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21684787 + ... + 21730602.

It is an arithmetic number, because the mean of its divisors is an integer number (51056498640).

Almost surely, 2^994559731212 is an apocalyptic number.

994559731212 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

994559731212 is an abundant number, since it is smaller than the sum of its proper divisors (1456152203508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

994559731212 is a wasteful number, since it uses less digits than its factorization.

994559731212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43415502 (or 43415500 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 57.

The spelling of 994559731212 in words is "nine hundred ninety-four billion, five hundred fifty-nine million, seven hundred thirty-one thousand, two hundred twelve".